body {
  background-image: url("../img/bg.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  /*background-color: rgba(169,169,169,0.5);*/

}
.dropdown-current-user {
  padding-left: 20px;
  padding-right: 20px;
  margin-top: 5px;
}

.navbar-default .navbar-nav>.open>a,
.navbar-default .navbar-nav>.open>a:hover,
.navbar-default .navbar-nav>.open>a:focus {
  background: none;
}
.media{
  background-color: rgba(169,169,169,0.8);
  padding: 20px 10px 10px 20px;
  max-width: 600px;
  border-radius: 10px;
  margin: 1%;
}
.media:hover{
  background-color: rgba(	192,192,192,0.8);
}
.media-list{
  position: relative;
  margin-left: 10%;

}
.bg-header{
  position: sticky;
  top: 0;
  z-index: 2;
  background-color: rgba(240,230,140,0.5);
  /*background-image: linear-gradient( rgba(240,230,140,0.5), rgba(240,230,140,0.1));*/
}
.eg{
  margin-top: 1%;
}
.btn-eg{
  /*color: ;*/
  text-decoration: none;
  font-size: 20px;
}
/*添加博客样式*/
.btn-new{
  margin: 1% 0 5% 0;
  position: sticky;
  top: 0;
}
.list-group{
  background-color: rgba(255,255,255,1);
  height: 50em;
  margin: 0;
}
